I haven’t written about board books for a while, in part because the good ones seem to be getting rarer: More and more, these books for babies and toddlers rip-off bestsellers for older children instead of doing what they alone can do. But in today’s Wall Street Journal Megan Cox Gurdon writes about a series that suggests the unique potential of the medium: Julie Appel and Amy Guglielmo’s “Touch the Art” line, which began with Brush Mona Lisa’s Hair. “Each book features well-known images adorned with appealing, touchable gimmicks,” Gurdon writes. The latest is Catch Picasso’s Rooster (Sterling, 21 pp., $12.95), which invites children to stroke things such as a red-feather comb and the cat in Henri Rousseau’s The Tabby. You can read Gurdon’s review here. The publisher’s site has more on other books in the series, including Count Monet’s Lilies.